Question

(x+a)^2-(x-b)^2+x^2+(a-b)x-ab by (a+b)

Answer 1

(a+b)(2x−ab+a−b)+x(a−b)+x²

Explanation:

I can't make a good explanation, so here's a graph.

Also, this wouldn't be a proportional relationship because of exponents on the last term.

This is really a parabola.